Exhaust mod question for Half Mile Event
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Member
Joined: Apr 2010
Posts: 206
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From: Tampa, FL
2005 E55 AMG
Exhaust mod question for Half Mile Event
Next month is a half mile event that I am preparing for. Im getting a rear tank and intake fabricated, grinding the tb shaft, modifying the stock fuel rail and getting injectors. My mods now are H/E, pump and tune and 180 pulley.
Now my question is that Im having my secondary cats removed and resonators replaced with an x pipe but should instead of welding the muffler side back should I spend the extra money on VBand clamps so I can remove that extra weight at the track? Also...should I do a primary cat delete even though Im still on stock headers?
Thanks for the opinions!
Now my question is that Im having my secondary cats removed and resonators replaced with an x pipe but should instead of welding the muffler side back should I spend the extra money on VBand clamps so I can remove that extra weight at the track? Also...should I do a primary cat delete even though Im still on stock headers?
Thanks for the opinions!
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Joined: Apr 2009
Posts: 1,582
Likes: 1
From: Lafayette, IN
2008 ML63 2009 SL63 2010 Alpha 7 GTR
Next month is a half mile event that I am preparing for. Im getting a rear tank and intake fabricated, grinding the tb shaft, modifying the stock fuel rail and getting injectors. My mods now are H/E, pump and tune and 180 pulley.
Now my question is that Im having my secondary cats removed and resonators replaced with an x pipe but should instead of welding the muffler side back should I spend the extra money on VBand clamps so I can remove that extra weight at the track? Also...should I do a primary cat delete even though Im still on stock headers?
Thanks for the opinions!
Now my question is that Im having my secondary cats removed and resonators replaced with an x pipe but should instead of welding the muffler side back should I spend the extra money on VBand clamps so I can remove that extra weight at the track? Also...should I do a primary cat delete even though Im still on stock headers?
Thanks for the opinions!
I have heard in the past that just removing the primary and secondary cats is a significant step in opening up the exhaust, thus adding more HP
